Compiling a JUnit test class is like compiling any other Java classes. The only thing you need watch out is that the JUnit JAR file must be included in the classpath. For example, to compile the test class HelloTest.java described previously, you should do this:
javac -cp junit-4.4.jar HelloTest.java dir HelloTest.* 453 HelloTest.class 183 HelloTest.java
The compilation is ok, if you see the HelloTest.class file.
A JUnit test class usually contains a number of test methods. You can run all test methods in a JUnit test class with the JUnitCore runner class. For example, to run the test class HelloTest.java described previously, you should do this:
jjava -cp .; junit-4.4.jar org.junit.runner.JUnitCore HelloTest JUnit version 4.4 . Time: 0.015 OK (1 test)
This output says that 1 tests performed and passed.
Java enabled High performance by introducing Just-In-Time compiler.
Java is a high-level programming language originally developed by Sun Microsystems and released in 1995. Java runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX.
Java runs on ux like HP-Unix, Sun Solaris, Redhat Linux, Ubuntu, CentOS, etc.